Accelerator attachment.



L. M., P, 5. ci; C, L, WELL ACCELERATOR ATTACHMENT. APPucATfoN mi@ um'. 41 1916 S was Cil fire

-rrrin i@ rari gw @rentables LLOYD M. WILLIAMS. PERROS? E, WILLIAMS, A111) CHESTER L.'l/VLLIA1V-S, OF SAN YER-N CISCO, CALIFORNXA. ASSIGNORS TO W'ILLAMS-BROTHERS ARCRAFT COEPORTIOI\ OF SAN FRANCISCO, CALIFORNIA, A. CGRPOBATION OF CALIFORNIA.

ACCELERATR ATTACHMENT,

Application neuand useful luiproveinents in itwelerator Attachments, specification.

One obiect ot ivhiclithe following is a of the present invention is to .provide means ivhereby the throttle o1 an internal combustion engine ot ,a ino-tor ear eani'be controlled either by the hand or by the ,too-t. y

A t'urthe'r object is to provide an nient which can easily be adapted to ears at present. in use, especially Ford ears, having only hand-operated ineaiis oiQ control by which said nieans ot' Control inay also be operated by the foot.

A further object is to provide ineans whereby each ineansof control is entirely independent of the other, so that, when either of said ineens is operated, it will not aii'eet the operation oi the other ineans.

in the accompanying drawing', Figure 1 a ttarhbroken plan vier.' ot a portion of an autoinohile showing our improved inerhaiiisni Y to our invention being herein. omitted.

attaelied' thereto; Fig. Q is a longitudinal seetioii'of the saine on the line 7 i ot 1; `Fig. 3 is an enlarged broken side vieiv of a portion of the mechanism; 's1 is :i side vieiv, and Fig. 5 a bottoni plan view, of a clainp.

Referring to the drawing, 1 indicates a toot-board ot a Ford. earoei-rain ineffhanisin carried by .the foot-board and not essential Secured by seieivs 2 to said toot-board is a base -ilate 3 on which are secured 'iarallel u iright plates ,through which extends a pivot pin 6, on which is pivoted a toot lever having a pedal portion l adapted to be depressed by the toot and a lever-,portion o eX- teiiding betivee'n. and guided by, said up- "right plates. The forward end 9 of the foot lever is turned. at right angles to the lever portion 8, and through an aperture. in said izorvvard end 9 ext-ends the nearer terminal portion of a vstout Wire or cable 11, here shown as the latter, the extreme end ot' which is secured by a Clamp 12 having ar split beveled outer or lower portion compressed around said cable 11 by being duraivn up Specification of Letters atent.

filed November 1916.

'Patented Nov. 12, 19118.I

semi No. 129,601. i

against a beveled socket in the under side of, the lever 'i' by ineans of a nut 13 screwed on.l the threaded nearer or upper end of said elanip 'The terminal portions of a strong?- vokeshaped spring 14 are coiled aroundjsaid L pivot pin 6, and'its ends are seoured in sock-v.

ot said yoke bea-rs downward upon the oi ivard end 9 of said foot lever in Lt'ront of the. a

fj ets 16 in the base plate. The middle portionv i ,tube beine; secured. in a clamp 18 having a f split beveled outer portion 19, contracted around said tube 17 by a nut Osereived.

upon said elainp. A,

In applying thev attachment to a Ford oar,

there is first reinoved a rod or-link which has-.-

bent ends extending downwardly, one in a; f

hole 21 in the outer end of a crank armtQQ i attached to the rod 23 extending alongside" the steering post and operated by thev throt- 'i l tle lever,v and the other through a hole @ein the outer end ot a Crank arnivQ attached te a roel; shaft. S26 which operates the throttle.,v

valve of the Carbureter. been reinoved, there is substituted thereii'orl a rigid tube 27 Curved near one end. 'ae

shoivn at 28, said curved portion bein,"4

Said rod having secured in a sleeve 29 attached to one end or:

a short arrn 3Q, the` other end oi' which bent downwardly and extends through sai hole 21. L Through this tube QT extends flexible tube. 1 7 and the cable 11. said ra 11 extendingbeyond the tier'V about twice the distance of its sary to fully open the throttle, as heronafter explained, and to a point near the V"laither end ot' the tube I?, and l'ieing;v there secured within a short tubular head 151 contained in f i a short tube which is' secured around the" head 31, by reason ot' its inner end being,

contracted around the cable 11, and being:r thereby prevented troni moving outwardly by the abutment of said contracted' end against the inner endr of the head 31, and also by reason of a pin SBeXtending through diainetrieally opposite holes in said tube 32 near its outer end and outside of, and abutting against, the outer end of, the head 31,

and thus preventing the movement ot' the tube 32 inwardly on the cable 11. Said tube 32 is slidable in the tube 27, and the pin y33 vextends also through longitudinally eXtend-' ing diainetrieally opposite slots 31 in said tube 27, andthrou h holes in a tube 35 slid able around the tu e 27, and from which de- I pends a stem 36 received swithin said hole 24.

The bent end of the arm 29 and the stein 3G are securedin their respective holes by cotter pins 37. A spring 38 coiled around the tube 27'is compressed between said tube 35 Y vand a collar 39 on said tube :27, and normally presses said tube, and therefore also the far end of the cable 11, toward the far end of said tube 27.

ll'hen the foot lever is depressed, the-'Gable 11 1s raised within the tube 1T of coiled wire.

and the far end of said cable 11 is thus.

The construction does not interfere with the operation of the throttle valve b v the hand mechanism 40 for that purpose. for, if said hand mechanism be operated, then the shaft 26 is rocked Aand the tube :27 is shifted longitudinally. carrying with it the tube 1T and cable 11, thereby actuating the throttle valve-in the same way aswas done through the medium of the rod which was displaced by said tube 27. f

It is important, however, for the success of the.aboveoperation, that the resistance ofl'ered by the friction of the tube 1T of coiled wire within the outer tube 27 should begreater than the sum of the resistance to'eompression of'the coil 3S and the frictional resistance opposing the, opening of the throttle valve, for the following reasons: lt will be observedl that the cable 11 and flexible tube l? do 'not extend in a straight course from the b'ase plate 3 to the tube 27. but are curved.A Now if said cable 11 and flexible tube 17 could easily assume a straight.v or more nearlystraight, form, instead of having the curvature 'shown' on the drawing, then the'etfect of depressing vthe vfoot lever might be, not toltopen thefthrottle valve, but simply to move said cable 11 and flexible tube 17 into a position more nearly.

straight. In that case, the nearer end of the cable 11 would move upwardly above the plate 3, being drawn upwardly by the foot lever.7. The4 nearer end el the tlexibletube 17 cannot, however` so move upwardly, bein secured in the clamp,18. Bu't if the friction between the flexible tube 17 and the tube 27 were sutliciently small, then, at the same time that the cable 11 moved upwardly above the plate 3, the outer portion'of said tube 17 would move outwardly within the tube 27, and both the cable 11 and the eXi- "ble tube 17 would assume a more nearly straight form between the foot-board 1 and the tube '2l'.y Then the cable A11 would be' drawn upward -by the foot lever'. without having any-ellect. upon the throttle valve, the farther end of the cable 11 being sta tionaryand its nearer end moving upwardly,

'and the nearer end of' the tube 1T being stationary and its remote end moving outward.

This result is avoided by providing that the friction between the flexible tube 17 and the tube 27, or parts connected therew .1, is greater than the resistance to con'lpresszon of the coiled spring 38 and the frictional re' sistance to the opening of the throttle valve.

The means we have provided for this purll'hen the hand lever is operated to loperithe throttle. valve, and the foot 'lever is actuated for the samev purpose, said depression will have no effect on the results, provided that the hand lever isfullv actuated, so as to bring the extension 45 from the valve lever'or crankarm 25 against a stop 46. The effect of' the depression of the foot lever would be to shift the tube 1T to the right, or away from the operator. and uponv releasing said foot lever. said tube 17 will be shifted to the left or toward the operator. But, should the hand lever be actuated `to onl partly open the throttle valve, said extension will not abut. against the .stop 46. v If,'then..the foot lever is depressed, the re, sultv will be, first. to move the crank arm 25, until said extension abuts against said stop,A and then the flexible tube 17 will be shifted` to the right, or from the operator, untilthe foot lever is fully depressed, Upon releasing the foot. lever, the throttlevalve villclose until it has reached the starting point at which' the toot lever was depressed, said point beinnr determined by the positionsof the hand ever, and, -while the throttle is closing, the tube 17 would shift to the left, or toward the operator, until the foot lever c comes back to its normal position. l It the foot lever is fully depressedto open the throttle valve, and the hand mechanism is then actuated for'the same'purpose, this will have no effect upon the results, lsince the only result will be to shift the tube 17 to the left, and upon operating the hand mechanism to close the throttle, Vthe tube 1 7 ing the hand mechanism to close the throttle valvesaid throttle valve will close until.it. has reached the starting point determined by the operation of the foot lever. when the tube 1T will .shift to the right iintil the hand mechanism is moved to they position corresponding to full closure of the throttle valve. Then upon releasing the foot lever, the throttle valve will fully close.

le claim 1. In combination, a throttle valve crank arni ot' a motor car. a hand-operated mechanism for moving saidvarm. comprising a rock shaft. a crank arm thereon and a resilient connection between said crank arms. a foot lever. a flexible tube, one end of which is supported by said connection. and a flexible wire witliinthe tube one end of which is operatively connected to the first-named crank arm, the other ends of the tube and wire. being. one of them stationary and the other connected to the foot lever. f

2. ln combination. a throttle valve crank arm of a motor car. a hand-operated mechanism for moving'said arm. comprisingr a rock shaft. a crank arm thereon and a resilient connection between said crank arms. a foot lever. a liexible. tube. one end of which is movably supported b v said connection. and a tlexible wire within the tube one endl of' which is operatively7 connected to the first-named crank arm. the other ends of the tube and wire. being. one of them stationary and the other connected to the foot lever.

3. In combination. a throttle 'alve crank arm of a motor car. a hand-operated mechanism for moving said arm. comprising a rock shaft. a crank arm thereon and a resilient connection between said crank arms. a Jfoot lever. a flexible tube. of which one end is stationarily held adjacent to the foot lever and the other end is movably supported by .said resilient connection. and a flexible connection within the flexible tube. of' which one end is connected to .said t'oot lever and the other end i ratively connected to the first-named crank arm. e

l. In cond-nation a throttle valve crank arm ot' a motor car. a hand-operated mechanism for.. movingr said arm comprising a rock shaft. a crank arm thereon, a tube of which one end is pivotally supported by the second-named crank arm and the other end is slidably supported by the first-named crank arm and having a fixed stop thereon, a coiled spring compressed between said first-named crank arm and said stop. a flexible tube in said first-named tube, a foot lever adjacent to which one end of said lastnamed tube is stationarily located. and a connection between said foot lever and said first-named crank arm and contained in said Hexible tube. v

:3. In combination, a throttle valve crank arm of a motor car. a hand-operated mechanism for moving said arm con'iprising a. rock shaft. a crank arm thereon. a tube of which one end is pivotally supported by the second-named crank arm and the other end is slidably supported by the first-named crank arm and having a fixed stop thereon, a coiled springy compressed between -said first-named crank arm and said stop, a flexible tube in said first-named tube. a foot lever adjacent to which one end of said last-named tube is stationarily located. a connection be.- tween said foot lever andsaid first-named crank arm and contained in said flexible tube. and means for resisting the free movementl of' said flexible tube in said first-named tube.

LLOYD M. XVILLAMS.

PEBCY J. ll-TLLIAB'IS.

CHESTER L. "WILLIAMS 

